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Fri, 13 Jan 2012 08:13:27 +0000 en hourly 1 http://wordpress.org/?v=3.3 http://www.zhlwish.com/2011/09/17/eclipse-jface-binding-3/ http://www.zhlwish.com/2011/09/17/eclipse-jface-binding-3/#comments Sat, 17 Sep 2011 14:28:19 +0000 周亮 http://www.zhlwish.com/?p=786 Continue reading →]]> http://www.zhlwish.com/2011/09/17/eclipse-jface-binding-3/feed/ 4 http://www.zhlwish.com/2011/09/17/eclipse-jface-binding-2/ http://www.zhlwish.com/2011/09/17/eclipse-jface-binding-2/#comments Sat, 17 Sep 2011 13:15:11 +0000 周亮 http://www.zhlwish.com/?p=775 Continue reading →]]> http://www.zhlwish.com/2011/09/17/eclipse-jface-binding-2/feed/ 0 http://www.zhlwish.com/2011/09/17/eclipse-jface-binding-1/ http://www.zhlwish.com/2011/09/17/eclipse-jface-binding-1/#comments Sat, 17 Sep 2011 08:08:55 +0000 周亮 http://www.zhlwish.com/?p=767 Continue reading →]]> http://www.zhlwish.com/2011/09/17/eclipse-jface-binding-1/feed/ 0 http://www.zhlwish.com/2011/09/09/gef-step-by-step-9/ http://www.zhlwish.com/2011/09/09/gef-step-by-step-9/#comments Fri, 09 Sep 2011 06:32:48 +0000 周亮 http://www.zhlwish.com/?p=747 响应）被称为EditPolicy，这是策略模式的典型实现，Policy可以认为是一个Map，输入一个Request，输出其对应的Command 用户对图元的操作（拖拽、选择）被称为Request 用户对图元的操作是可以分类的，这个类型被称为Role。比如拖动图元移动位置，拖动图元边框改变图元大小是影响布局的操作，称为LAYOUT_ROLE；双击图元修改图元上的文字信息，双击连线上的问题修改连线的说明，这些都是直接对图元进行修改的操作，称为DIRECT_EDIT_ROLE……，这样的操作类型有很多，以后有机会再进行系统的总结。 对于用户的操作，图元使用那种响应策略（是边框变粗、还是Label变成Input接受用户输入），取决于图元上注册的事件响应类型（Role），当然我们可以向图元同时注册多个响应策略，用于响应不同的用户输入： installEditPolicy(EditPolicy.LAYOUT_ROLE, new DiagramLayoutEditPolicy()); 关于此installEditPolicy()方法，我同组的小牛分析得比较透彻，看他：http://www.thankcreate.com/java/357 OK, 下面我们开始编码。 创建Command 首先创建一个Command类，用于响应用户的拖拽操作，com.zhlwish.learngef.command.AjustNodeConstraintCommand继承自org.eclipse.gef.commands.Command，代码如下： 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 … Continue reading →]]> http://www.zhlwish.com/2011/09/09/gef-step-by-step-9/feed/ 3 http://www.zhlwish.com/2011/08/22/gef-step-by-step-8/ 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